Razor-stropping device.



H. E. ORANDALL.

RAZOR STEOPPING DEVICE.

APPLICATION FILED AUG. 22, 1909 961,105, Patented June 14,1910.

) WITNESSES: I Hga IDZZZZNTOR.

V/ I BY a (Z, MM-Q ATTOR BY.

HERBERT E. CRANDALL, OIE BRADFORD, PENNSYLVANIA.

RAZOR-STROPPING DEVICE.

Specification of Letters Patent.

Application filed August 23, 1909.

Patented June 14, 1910. Serial No. 514,242.

To all whom it may concern:

Be it known that I, HERBERT E. GRAN- DALL, of the city of Bradford,McKean county, in the State of Pennsylvania, one of the United States ofAmerica, have invented certain new and useful Improvements inRazor-Stropping Devices, of which the following is a specification.

This invention relates to improvements in razor stropping devices. inwhich a razor blade is suspended in an oscillatable clamp and broughtinto contact with the strop by the action of the strop runnin over arock shaft to which the clamping cevice is connected, or geared, and myobject is to provide means whereby a device of this kind adapted for usewith ordinary razors may also be adapted for use with the wafer likeblades employed in many safety razors. I attain my object by providing ablade holder adapted to hold a safety razor blade, which holder isitself adapted to be inserted in the oscillatable clamp, hereinbeforereferred to.

A further object is to provide means to prevent the cutting of the razorstrop which was liable to occur if the user failed to keep a tension onboth ends of the strop. I attain this object by providing the devicewith a tension roller adapted to hold the strop in contact with the rockshaft so that the latter is promptly rocked to swing the oscillatableclamp whenever the direction of movement of the strop is changed.

Figure l is a vertical section through the strop and stropping device.Fig. 2 is an enlarged sectional detail partly broken away, showingparticularly the gearing for rock ing the oscillatable clamp. Fig. 3 isan enlarged vertical section through the blade holder and theoscillatable clamp. Fig. 4c is a perspective detail showing theoscillatable clamp and blade holder separate. Fig. 5 is a longitudinalvertical section of the strop.

In the drawings like letters of reference indicate corresponding partsin the different figures.

A is a frame in which is journaled the oscillatable clamp B. This clampis preferably formed from a single piece of spring metal bent around ashaft C and riveted below the shaft by means of rivets a. A pin 2)passing through the clamp and shaft hold the two securely together.

The edges of the clamp are bent to conform to the shape of the back ofan ordinary razor blade and having a spring action they will securelyhold such a razor in place by frictional engagement therewith. Thisclamp will securely hold ordinary razors, but is, of course, not adaptedto safety razor blades D of the type shown. These blades are ofwafer-like material and are com- .monly provided with a pair of holes 0.To

hold these blades I provide the holder E. This is preferably formed ofspring metal bent upon itself to form the'two spring jaws d e. The jaw(Z has two short pins f formed on or connected thereto, which areadapted to lit in the holes 9 formed in the jaw e.

WVhen a blade D is placed between the jaws of the holder the pins fproject through the holes in the blade and enter the holes 9. The bladewill thus be securely held as long as the jaws (Z c are pressedtogether. It will be noted that the upper edges of these bend outwardlyso that the holder will fit within the clamp B. When this holder isremoved from the clamp the jaws spring apart as shown and the blade isreadily removed. When the strop is in use, as shown particularly in Fig.2, it will be seen that the blade is brought almost flat against theside of the strop as the latter is pulled outwardly, which is the properposition to obtain the most effective stropping action.

l/Vhile I prefer the jaws to be spring connected, as shown in Fig. 4, itis obvious, of course, that other methods of connecting the jaws mightbe devised which would fall within the scope of my invention.

WVhile the clamp B may be operated in any desired manner I prefer toemploy the following means: A rock shaft F is journaled in the frame andcarries a gear wheel G meshing with a similar gear wheel H on the end ofthe shaft C of the clamp. The razor strop renders over this roller F andthe gear wheels are thus actuated to rock the clamp B to cause the bladeto engage the razor strop at one side or the other according to thedirection in which the razor strop is being moved.

Above the rock shaft F a roller I is located. This roller has its endsjournaled in the gear cases J suitably journaled on the vertical slotsin the gear cases J. The gear cases have lugs 2' formed thereon, whichretain in position the bent springs K which bear down on the pivots ofthe roller I and thus tend to press it toward the rock shaft F. Therazor strop has thus a suitable contact with the rock shaft F, so thatthe slightest reverse movement of the strop, even though both ends benot under tension, will swing the clamp away from the strop and thusprevent a possibility of the latter being cut by the razor held in theclamp.

That I claim as my invention is 1. In a razor stropping device thecombination of opposite end pieces one of which has an opening thereinto permit the insertion and removal of the razor; tie rods con nectingthe end frames; a rock shaft journaled in the end pieces; a razor clampournaled in the end pieces; means for imparting the movements of therock shaft to the razor clamp; a razor strop engaging the rock shaft; avertically movable tension roller journaled in the frame above the rockshaft; and spring means pressing said roller toward the rock shaft.

2. In a razor stropping device the combination of opposite end piecesone of which has an opening therein to permit the insertion and removalof the razor; tie rods con necting the end frames; a rock shaftjournaled in the end pieces; a razor clamp journaled in the end pieces;gearing between the rock shaft and the razor clamp; a razor stropengaging the rock shaft; a vertically movable tension roller journaledin the frame above the rock shaft; and spring means passing said rollertoward the rock shaft.

Bradford, this 26 day of July 1909.

HERBERT E. GRANDALL.

Signed in the presence of DANIEL F. SWAN, M. BRYMAN.

